A brake pump for combined front and rear wheel braking

Abstract

The utility model relates to a brake upper pump for combined braking of front and rear wheels, comprising a pump body and a brake handle, the pump body being formed with a hinged portion, one end of the brake handle being hinged on the hinged portion through a hinge shaft, a piston assembly with one end extending out of the pump body being connected to the pump body, and characterized in that: a combined brake block which is linked to the brake handle is provided at the brake handle, a cable mounting hole for cable installation is provided at one end of the combined brake block, a brake push block is provided on a side of the combined brake block corresponding to the piston assembly, and the combined brake block is driven to approach or move away from the piston assembly through the brake handle, and during the whole process, the front and rear wheels can be braked simultaneously by only tightening one side of the brake handle with one hand, thereby solving the technical problem that the brake device of the existing vehicle is prone to rollover due to independent control of the front and rear wheel brakes, and making the combined braking of the front and rear wheels at the same time more labor-saving, convenient and safe.

Description

Technical Field

[0001] The utility model relates to the field of a motorcycle brake upper pump, in particular to a brake upper pump for combined braking of front and rear wheels. Background Art

[0002] In the prior art, a two-wheeled vehicle brake device includes a front upper pump, a front lower pump, a rear upper pump and a rear lower pump, wherein the front upper pump and the front lower pump are used to control the front wheel brakes, and the rear upper pump and the rear lower pump are used to control the rear wheel brakes.

[0003] The brake device of the prior art is a separate brake for the front and rear wheels, that is, the front upper pump and the front lower pump, as well as the rear upper pump and the rear lower pump independently control the front and rear wheel brakes of the two-wheeled vehicle respectively. Specifically, holding the brake on the right hand, the front upper pump can only supply oil to the front lower pump through the oil pipe. When the oil pressure of the front lower pump reaches a preset value, the plunger is pushed, and the plunger pushes the brake pads of the front lower pump to brake the front wheel; holding the brake on the left hand, the rear upper pump can only supply oil to the rear lower pump through the oil pipe. When the oil pressure of the rear lower pump reaches a preset value, the plunger is pushed, and The plunger pushes the brake pads of the rear lower pump to brake the rear wheel. With this braking method, in an emergency, holding the brake on the right hand only brakes the front wheel, the front wheel is stationary, and the rear wheel is still running, or holding the brake on the left hand only brakes the rear wheel, the rear wheel is stationary, and the front wheel is still running. Due to the effect of inertia, the two-wheeled vehicle may roll over, posing a safety hazard to the rider. If the front and rear brakes are applied at the same time, the driver must operate with both hands at the same time, which is not only unsafe but also laborious.

[0004] Therefore, it is a technical problem that technicians in this field urgently need to solve to improve the existing brake device of two-wheeled vehicles and provide a brake pump that can simultaneously brake the front and rear wheels by holding the brake on the right hand or the left hand. Summary of the invention

[0005] The technical problem to be solved by the utility model is to provide a brake upper pump for front and rear wheel combined braking in view of the deficiencies of the above-mentioned prior art.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a brake pump for combined braking of front and rear wheels, comprising a pump body and a brake handle, the pump body being formed with a hinged portion, one end of the brake handle being hinged to the hinged portion through a hinge shaft, a piston assembly with one end extending out of the pump body being connected to the pump body, a combined brake block being provided at the brake handle and linked to the brake handle, a wire mounting hole being provided at one end of the combined brake block for installing a wire, a brake push block being provided on a side of the combined brake block corresponding to the piston assembly, and the combined brake block being driven close to or away from the piston assembly by the brake handle.

[0007] By adopting the above technical scheme, the cable mounting hole of the combined brake block is connected to the cable for the hub brake of the rear wheel, and the hydraulic disc brake of the front wheel is connected to the pump body through the oil pipe, and the piston assembly is pushed by the brake push block to drive the hydraulic oil in the pump body to brake the front wheel, and the brake handle is linked with the combined brake block, so that when the brake handle is pulled to brake, it can simultaneously drive the cable and the piston assembly to brake the front and rear wheels together, ensuring that the brake pump can be loaded on the right hand or the left hand of the vehicle, so that the user can brake the front and rear wheels at the same time with only one hand, solving the technical problem that the braking device of the existing vehicle can easily cause the vehicle to roll over when independently controlling the front and rear wheel brakes, and making the simultaneous front and rear wheel combined braking more labor-saving, convenient and safe.

[0008] The above-mentioned brake pump for combined front and rear wheel braking can be further configured as follows: the pump body includes a brake oil cup and a piston chamber, the brake oil cup is provided with an oil inlet hole and an oil return hole communicated with the piston chamber, the end of the pump body corresponding to the brake oil cup is provided with an oil pipe connecting seat communicated with the brake oil cup, the piston assembly is arranged in the piston chamber, and expands and contracts in the piston chamber with the squeezing of the brake push block.

[0009] By adopting the above technical solution, the oil pipe connecting seat is used to connect the oil pipe at the hydraulic disc brake of the front wheel. The brake oil cup is provided with an oil inlet hole and an oil return hole, both of which are connected to the piston cavity, ensuring that the brake oil can flow in and out quickly under the action of the piston assembly, thereby achieving rapid braking.

[0010] The above-mentioned brake pump for combined front and rear wheel braking can be further configured as follows: the piston assembly includes a piston arranged in a piston cavity, an elastic member arranged between the piston and the pump body, and a piston push rod arranged at one end of the piston away from the elastic member, and the elastic member prompts one end of the piston push rod to pass through the piston cavity and be arranged corresponding to the brake push block.

[0011] Using the above technical solution, the piston assembly includes a piston, an elastic member and a piston push rod. The elastic member (such as a spring) prompts the piston push rod to be set correspondingly to the brake push block, thereby achieving precise control of the brake oil pressure and driving the brake handle to reset through the piston push rod that can automatically reset.

[0012] The above-mentioned brake pump for combined front and rear wheel braking can be further configured as follows: a piston plug for blocking the piston cavity is provided at the piston cavity corresponding to the piston push rod, one end of the piston push rod is against the piston, and the other end passes through the piston plug.

[0013] By adopting the above technical solution, a piston plug is provided at the piston cavity corresponding to the piston push rod to seal the piston cavity and ensure that the brake oil does not leak from the piston push rod.

[0014] The above-mentioned brake pump for combined front and rear wheel braking can be further configured as follows: the elastic member is a spring, a spring positioning groove is provided at one end of the piston corresponding to the spring, a spring positioning rod is provided between the spring positioning groove and the inner wall of the piston cavity, one end of the spring positioning rod is fixedly connected to the inner wall of the piston cavity, and the other end is inserted into the spring positioning groove, and there is a movable gap between the spring positioning groove and the spring positioning groove, and the spring is sleeved on the outer circumferential surface of the spring positioning rod.

[0015] By adopting the above technical solution, the elastic member is a spring, and the design of the spring positioning groove and the spring positioning rod ensures that the spring can stably provide restoring force, so that the piston assembly can be quickly reset after braking, avoiding spring deviation and improving stability.

[0016] The above-mentioned brake pump for combined front and rear wheel braking can be further configured as follows: a torsion spring is provided at the hinge portion, the torsion spring is sleeved on the outer circumferential surface of the hinge shaft, and urges the brake handle to move away from the piston assembly, and a limit block is provided at one end of the pump body corresponding to the brake handle.

[0017] By adopting the above technical solution, the torsion spring is sleeved on the outer peripheral surface of the hinge shaft, providing restoring force to the brake handle and the linked brake block, so that the brake handle can automatically return to the initial position after being released, and cooperate with the piston assembly to improve the resetting effect. By setting a limit block, the maximum displacement distance of the brake handle is limited so that it stays within the range that the palm can act.

[0018] The above-mentioned brake upper pump for combined braking of the front and rear wheels can be further configured as follows: the combined brake block is arranged below the brake handle, a wire mounting plate is provided at the position below the combined brake block corresponding to the pump body, and the wire mounting hole is provided on the wire mounting plate.

[0019] By adopting the above technical solution, a wire mounting plate is provided under the combined brake block, and the wire mounting hole is provided on the wire mounting plate to facilitate the installation and adjustment of the wire. The arrangement ensures that the wire mounting plate will not interfere with the piston assembly during movement, thereby increasing the wire braking distance and improving the rear wheel braking effect.

[0020] The above-mentioned brake pump for combined braking of the front and rear wheels can be further configured as follows: the brake handle and the combined brake pad are separately arranged, the combined brake pad is arranged below the brake handle, the combined brake pad corresponds to a linkage protrusion extending upward from one end of the brake handle, the linkage protrusion is arranged on the movement path of the brake handle, and drives the combined brake pad to move as the brake handle is braked.

[0021] By adopting the above technical solution, the brake handle and the combined brake block are set separately, which makes the processing more convenient and facilitates modular installation. By setting the linkage protrusion on the movement path of the brake handle, the brake handle can be linked with the combined brake block when pulling, thereby simplifying the structural design.

[0022] The utility model is further described below in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a three-dimensional schematic diagram of the embodiment of the utility model in a normal state.

[0024] Figure 2 It is a three-dimensional schematic diagram of an embodiment of the utility model in a braking state.

[0025] Figure 3 It is a structural schematic diagram of an embodiment of the utility model.

[0026] Figure 4 It is a cross-sectional schematic diagram of a piston assembly according to an embodiment of the utility model.

[0027] Figure 5 It is a three-dimensional schematic diagram of a piston assembly according to an embodiment of the utility model. Implementation

[0028] like Figure 1-Figure 5 As shown, a brake pump for combined front and rear wheel braking comprises a pump body 1 and a brake handle 2, the pump body 1 is formed with a hinged portion 11, one end of the brake handle 2 is hinged to the hinged portion 11 through a hinge shaft 21, a piston assembly 3 with one end extending out of the pump body 1 is connected inside the pump body 1, a torsion spring (not shown in the figure) is provided at the hinged portion 11, the torsion spring is sleeved on the outer circumference of the hinge shaft 11, and urges the brake handle 2 to move away from the piston assembly 3, a limit stopper 12 is provided at one end of the pump body 1 corresponding to the brake handle 2 to limit the maximum opening and closing angle of the brake handle 2, and a stopper 12 is provided below the brake handle 2 to contact the brake handle 2 A combined brake block 4 is arranged in linkage and separately, and the combined brake block 4 and the brake handle 2 are hinged to the pump body 1 through a hinge shaft 21. A wire mounting plate 41 is provided below the combined brake block 4 corresponding to the pump body 1, and a wire mounting hole 411 for installing the wire is provided on the wire mounting plate 41. A brake push block 41 is provided on one side of the piston assembly 3 corresponding to the combined brake block 4, and a linkage protrusion 43 extends upward from one end of the combined brake block 4 corresponding to the brake handle 2. The linkage protrusion 43 is arranged on the movement path of the brake handle 2, and drives the combined brake block 4 to move as the brake handle 2 is braked.

[0029] like Figure 3-Figure 5As shown, the pump body 1 includes a brake oil cup 5 and a piston chamber 10. The brake oil cup 5 is provided with an oil inlet hole 51 and an oil return hole 52 which are communicated with the piston chamber 10. One end of the pump body 1 corresponding to the brake oil cup 5 is provided with an oil pipe connecting seat 13 which is communicated with the brake oil cup 5. The piston assembly 3 is arranged in the piston chamber 10 and expands and contracts in the piston chamber 10 with the squeezing of the brake push block 41. The piston assembly 3 includes a piston 31 arranged in the piston chamber 10, a spring 32 arranged between the piston 31 and the pump body 1, and a piston push rod 33 arranged at one end of the piston 31 away from the spring 32. The spring 32 prompts one end of the piston push rod 33 to pass through the piston The rear of the cavity 10 is set to abut against the brake push block 41, and a piston plug 34 for blocking the piston cavity 10 is provided at the piston push rod 33 corresponding to the piston cavity 10. One end of the piston push rod 33 abuts against the piston 31, and the other end passes through the piston plug 34. A spring positioning groove 311 is opened at one end of the piston 31 corresponding to the spring 2, and a spring positioning rod 35 is provided between the spring positioning groove 311 and the inner wall of the piston cavity 10. One end of the spring positioning rod 35 is fixedly connected to the inner wall of the piston cavity 10, and the other end passes into the spring positioning groove 311, and there is a movable gap between the spring positioning groove 311, and the spring 32 is sleeved on the outer circumferential surface of the spring positioning rod 35.

[0030] When the brake pump of the utility model is installed on a two-wheeled vehicle such as a bicycle, a motorcycle, or an electric vehicle, the hub brake of the rear wheel of the vehicle is connected to the cable mounting hole 411 of the combined brake block 4 through a cable, and the hydraulic disc brake of the front wheel of the vehicle is connected to the oil pipe connecting seat 13 of the brake oil cup 5 through an oil pipe. When the vehicle needs to brake, it is only necessary to tighten the brake handle 2 with the brake pump on one side with one hand. At this time, the brake handle 2 will approach the pump body 1 along the hinge shaft 21 as a fulcrum. When the brake handle 2 moves, it will also drive the linkage protrusion 43 on its braking path to move together, thereby driving the combined brake block 4 to move. When the cable mounting plate 41 of the combined brake block 4 moves, it will pull the cable mounting plate 41 The line is then tightened to tighten the hub brake of the rear wheel to achieve rear wheel braking. At the same time, the brake push block 41 on the combined brake block 4 will push the piston push rod 33 to retract and retract in the piston chamber 10, and squeeze the hydraulic oil in the piston chamber 10 through the oil inlet hole 51 to squeeze into the brake oil cup 5, and the hydraulic oil in the brake oil cup 5 is pushed through the oil pipe connecting seat 13 and the oil pipe to the hydraulic disc brake to achieve front wheel braking. During the whole process, only one hand needs to tighten the brake handle 2 on one side to achieve simultaneous braking of the front and rear wheels, thereby solving the technical problem that the brake device of the existing vehicle is prone to rollover due to independent control of the front and rear wheel brakes, and making the simultaneous front and rear wheel combined braking more labor-saving, convenient and safe.

Claims

1. A brake pump for combined front and rear wheel braking, comprising a pump body and a brake handle, wherein the pump body is formed with a hinged portion, one end of the brake handle is hinged to the hinged portion through a hinge shaft, and the pump body is connected to a piston assembly with one end extending out of the pump body, characterized in that: The brake handle is provided with a combined brake block linked to the brake handle, one end of the combined brake block is provided with a wire installation hole for installing a wire, and the combined brake block is provided with a brake push block on one side of the piston assembly corresponding to the piston assembly, and the combined brake block is driven close to or away from the piston assembly by the brake handle.

2. The brake pump for combined front and rear wheel braking according to claim 1, characterized in that: The pump body includes a brake oil cup and a piston chamber. The brake oil cup is provided with an oil inlet hole and an oil return hole connected to the piston chamber. One end of the pump body corresponding to the brake oil cup is provided with an oil pipe connecting seat connected to the brake oil cup. The piston assembly is arranged in the piston chamber and expands and contracts in the piston chamber with the squeezing of the brake push block.

3. The brake pump for combined front and rear wheel braking according to claim 2, characterized in that: The piston assembly includes a piston arranged in a piston cavity, an elastic member arranged between the piston and a pump body, and a piston push rod arranged at one end of the piston away from the elastic member. The elastic member causes one end of the piston push rod to pass through the piston cavity and be arranged corresponding to the brake push block.

4. The brake pump for combined front and rear wheel braking according to claim 3, characterized in that: A piston plug for blocking the piston cavity is provided at a position of the piston cavity corresponding to the piston push rod. One end of the piston push rod abuts against the piston, and the other end passes through the piston plug.

5. The brake pump for combined front and rear wheel braking according to claim 4, characterized in that: The elastic part is a spring, and a spring positioning groove is opened at one end of the piston corresponding to the spring, and a spring positioning rod is arranged between the spring positioning groove and the inner wall of the piston cavity. One end of the spring positioning rod is fixedly connected to the inner wall of the piston cavity, and the other end is inserted into the spring positioning groove, and there is a movable gap between the spring positioning groove and the spring, and the spring is sleeved on the outer peripheral surface of the spring positioning rod.

6. The brake pump for combined front and rear wheel braking according to claim 1, characterized in that: A torsion spring is provided at the hinged portion, and the torsion spring is sleeved on the outer peripheral surface of the hinged shaft and urges the brake handle to move away from the piston assembly. A limit stopper is provided at one end of the pump body corresponding to the brake handle.

7. A brake pump for combined front and rear wheel braking according to any one of claims 1 to 6, characterized in that: The combined brake block is arranged below the brake handle, and a wire installation plate is provided at a position below the combined brake block corresponding to the pump body, and the wire installation hole is arranged on the wire installation plate.

8. A brake pump for combined front and rear wheel braking according to any one of claims 1 to 6, characterized in that: The brake handle and the combined brake pad are separately arranged, and the combined brake pad is arranged below the brake handle. The combined brake pad corresponds to a linkage protrusion extending upward from one end of the brake handle. The linkage protrusion is arranged on the movement path of the brake handle and drives the combined brake pad to move as the brake handle is braked.

9. The brake pump for combined front and rear wheel braking according to claim 7, characterized in that: The brake handle and the combined brake pad are separately arranged, and the combined brake pad is arranged below the brake handle. The combined brake pad corresponds to a linkage protrusion extending upward from one end of the brake handle. The linkage protrusion is arranged on the movement path of the brake handle and drives the combined brake pad to move as the brake handle is braked.

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